Choosing of UART0 in LPC54102 (OM13077)

[ratheesht]

Hi,

           I am working with LPCXpresso54102 (OM13077) board. Here i have two option for using UART0.

i.e. UART0 is available in  header J6 as VCOM and in header J5 as UART.  I have used UART ring buffer example that is working fine with VCOM (header J6)  but i need same output from UART at J5 header. 

What changes i have to made?

is it S/W or H/W change?

[kerryzhou · Accepted solution]

Hi Ratheesh T,

   If you want  the PIO0_1 and PIO0_0 works in both J6 and J5, neither the software nor the hardware you need to modify, just leave all the software and the hardware as default.

  Because, if you check the hardware, PIO0_1 and PIO0_0 already connected to both J5 and J6(virtual com).

Now, you just need to find a TTL to USB tool, and connect the PC RX to J5_5, PC TX to J5_4.

You will get the same uart data as the J6 USB virtul com port.

I already check it on my side, it works ok with lpcxpresso lpc54102 board.

Wish it helps you!

If you still have question, please let me know!

Have a great day,
Kerry

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[ratheesht]

Hi,

             I understand that and it is working fine  ...

Thanks